Window or door screen.



A. WHEsToNE. WINDDW OR DOOR SCREEN.

APPLICATION FILED JULY 12.1917.

1,268,653. Patented June 4,1918.

2 SHEETS-SHEET l- 'A. WHETSTONE.

WINDOW 0R DOOR SCREEN.

APPLICATION Fl LED JULY 12. 1917.

Patented Jun@ 4, 1918.

2 SHEETS--SHEET 2.

Atmen 'Wiersma QF MQUNT Cerises PE-saSYIfveNI-e- WINDOW. on noonfscnnnn.

Specification of Letters Patent.

mated June e i918- ,Anwesen sie@ .nny 12, 1917. serial No. 180,130.

Toall .whom t may concern:

'Be it kn'own'th'at I, IFBED WnnTsToNE, a citizen ofthe yUnited States, residingr at Mount. Carmel, ltihe county lof'.lXlorthum- Berhad im@ Stat@ 107i Pnilsylvanlahave invented 'certain' new and luseful Improvef ments' in v'llillui .Or D69? Screeiisaid I aoliere'by. declare ,the renewing ,to te a tall, clear,I andv exact description of theinvention, such as willelriable vothers' skilled .in the art @elimination etrangere@ @fr Rafts ffl-Sv will be hereinafter specifically described, claimed and illustrated in the accompanying drawings, in which:

Figure 1 represents an elevation of the inside of the window screen,

Fig. 2 represents a horizontal sectional view on the line 2-2 of Fig. 1,

Fig. 3 represents a vertical sectional View on the line 3-3 of Fig. 1,

Fig. 4 represents a fragmentary perspective view of the lower end of the window screen,

Fig. 5 represents an enlarged fragmentary perspective view of the medial portion of the screen, illustrating one of the exit open- 1n s Fig. 6 represents a fragmentary elevation of the outside of the screen,

Fig. 7 represents a fragmentary side elevation of a modified form of screen, and

Fig. 8 represents a detailsectional view through the modified structure.

Referring to the drawings in detail, wherein similar reference numerals designate corresponding parts throughput the several views, 'the numeral 5 indicates a substantially rectagular frame, carrying laterally projecting andJ angular flanges i6, constituting guides for the movable frame 7 which is slidably supported therein and is retained in engagement with the frame 5 by the angular edges of the flanges 6.

Upper and lower screen sections 8 and 9 are secured to the outside of the frame 5 by iremovable strips-l0, and the adjacent edgesoffth'e screenV sections 8 and gare arranged inl ,spaced5 relation to provide the eiiit'opening 11. ySeveralf'of the horizontal wires of the lower `screen section'Q arerel moved atthe upper edge thereof and the vertical Y.wires areturned outwardly at their upperterminals',vas indicated at '12, toiprovde guards' designed' 'Prevent the @i1- trance of flies' into the room in ywhich the screen is located." `K

A guard plate 13 'constructed of imperforate sheet metal or screenv Lis securedv to the in-n'ersltllfece the outerv france5l by screws, Qi Laiivleilt means 14; "and i'arans'e'd drectly behind or vinwardly of'jthe eX'it 'openiii'ng'fll. The upper edge 15 ofthe plate'is extelifided ,outwardly between the vertical members of ,the vframe `5 and :is 7bent to'de'ie a u-shapeeimpig member 16, in which .the lower edge of the .upper ,Screen .Seeton Sis Tfirmly clamped. As clearly'shown `in Fi'gsl 3 and 5, the clamping member 16 carried by the plate 13 is arranged in spaced relation to the outwardly directed terminal 12 of the wires of the lower screen section 9 so as not to close the exit opening 11.

The horizontal wires at the extreme upper end of the upper screen section 8 are also removed and the upper terminals of the vertical wires of the screen section are directly outwardly, as indicated at 17, to prevent flies from entering through the eXit opening 18 in the upper part of the frame 5. An imperforate plate 19 is secured to the inner surface of the frame 5 and connects with the upper horizontal member of said frame, as shown in Fig. 3.

The outer surface of the inner frame 7 is also provided with strips 20, which secure the screen section 21 to the outer face thereof. The upper edge of the screen section 21 terminates in spaced relation to the upper horizontal member of the frame 5 to provide the eXit opening 22, and an imperforate plate 23 is secured to the inner surface of the frame 7 directly behindor inwardly of the opening 22, and the upper terminals of the screen section 2l are preferably directed outwardly toward the frame 5 to insure against'the entrance of the iies through the exit opening 22, in the direction of the interior of the room in which the screen is arranged. The upper edge of the screen section 21 is also arranged in spacea'lthe several plates which are presented to relation to the plate 19 carried by the frame 5, so that when the two frames' 5 and 7 are arranged one inwardly of the other a cire.

the outside of the room, are preferably dark in color so as not to attract the flies or other insects to the exit openings.`

In vthe modified structure illustrated in Figs. 7 yand 8, the screen section 25 is provided with a series vof spaced slits constituting exit openings 26. The terminals of the horizontal and vertical screen wires, at the edges of the openings, are turned outwardly to provide guards 27.

What I claim is: y 1. A screen structure including a frame, a screen section secured 1n the frame, said L' screen 'structure having an exit opening therein, the screen wires at the edge ofthe opening being bent laterally to provide guards, and a plate secured to the frame at the side of the opening opposite 'the' lguardsand having the surface adjacent the opening. darkened.

2. A screen structureincluding a frame, screen sections securedto the frame and ar` ranged in spaced relationv to provide an exit opening, a plate secured to the frame laterally of the exit opening and provided with an angular edge directed outwardly toward the screen sections, and a clamping member carried by the forwardly directed edge of the plate receiving 'the lower' edge of the upper screen section.

3. A screen structure including a frame, supporting ianges carried by the frame, a relatively movable frame supported in the flanges, screen sections secured in the frames and having exit openings in the upper portions thereof, and plates secured to the upper portionsof the two frames inwardly of the exit 'openings' and arranged in spacedrelation to thescreen' sections to provide `a cir-l cuitous passage between the exit openings. In testimony whereof I affix mysignature in presence of two witnesses.

ALFREDWHETSTONE.

Witnesses: Y V' H. J. HowENsTINE, v FREDKERGH.

Copies of this patent may be obtained for ve cents each, by addressing the Gommissioner of Patents,

` I y I Washington, D. C. f I l 

